Trolley.



No. 789,014. PATENTED MAY 2, 1905.

C. M. FEIST.

TROLLEY.

STATES Patented May 2, 1905.

CHARLES M. FEIST, OF SIOUX CITY, IOWA.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 789,014, dated May 2, 1905.

Application filed August 24, 1904. Serial No. 222,113.

To (bi/Z whom it may concern:

Be it known that I, CHARLES M. FEIsT, a citizen of the United States, residing at Sioux City, in the county of Woodbury and State of Iowa, have invented new and useful Improvements in Trolleys, of which the following is a specification.

This invention relates to trolleys; and the object of the invention is to provide a device of this character which is light, yet thoroughly strong, and wherein means of an advantageous character are provided for lubricating thoroughly all the surfaces necessary to be lubricated and wherein arcing at different places is prevented.

The improved article also involves other objects and advantages which will be set forth at length in the following description.

In the drawings accompanying and forming a part of this specification I illustrate fully one simple and convenient adaptation of the device, which I will particularly set forth in the description; but I do not limit myself to the disclosure thus made, for cer tain variations may be adopted within the scope of my claims.

Referring to the drawin s, Figure 1 is a bottom plan view of a trolley including my invention, the wheel thereof being repre sented in section. Fig. 2 is a sectional elevation of the same, the section being taken transversely of the axle. Figs. 3 and 4 are sectional elevations, the sections being on the lines 3 8 and 4 4:, respectively, of Fig. 2.

Like characters refer to like parts throughout the several views.

The trolley involves in its construction a wheel, as 5, which may be of the ordinary kind and which is rotatably supported by the axle 6, non-rotatively carried by the bearing or harp 7. The axle, like the bearing or harp, may be of any desirable material. The

axle 6 is represented as tubular or hollow, its opposite ends being threaded to engage corresponding threads formed in the walls of openings in the halves or complemental sections of the harp 7. From this it will be apparent that the opposite ends of the axle,

upon which the trolley-wheel is journaled, are uncovered or unobstructed to permit the passage of air-currents through the axle in order to cool the latter when in use and naturally add to the efficiency of the trolley. The wheel 5 turns around the intermediate smooth or non-threaded exterior of the axle or shaft 6.

Extending transversely of the axle 6 is represented a plurality of tubes 8. I have shown two of these tubes; but this is not essential. The ends of the tubes are fitted in perforations formed in the body of the axle and are open to communicate with the interior of the wheel 5. The presence of the tubes provides lubricant-receiving passages, the opposite ends of which are of course open, so that I am enabled to supply with a single passage lubricant at different points. To augment the efficiency of the lubricating portion of the trolley, I mount the tubes 8 obliquely to the axle 6, it being evident that when so positioned they distribute from their delivery or outer ends the lubricant over a greater area than they would if they were disposed at right angles to the axis of the axle. The lubricant contained within the tubes may be of any desirable character, but is not illustrated in the drawings for the reason that it forms no part of the present invention.

Formed as a part of the axle 6 is the contact-shoe 9, represented as of substantially rectangular formation and as a plate movable freely in a similarly-shaped slot in the periphery of the body of the axle. This construction, however, is not essential, for the same advantages secured by the plate may be obtained in obviously analogous ways which I deem it unnecessary to set forth. The shoe 9 is pressed positively into elec trical contact with the inner surface of the rotary wheel 5 by some suitable meansas, for example, the coiled spring 10, mounted within the hollow axle 6which, it will be understood, incases the tubes 8. The ends of the coiled spring bear against the relatively stationary tubes 8 and against the movable shoe 9, the tension of the spring being sufficient to press the shoe solidly against the wheel; in order to assure an electrical union between these parts, and consequently to prevent arcing between the axle and the wheel. To prevent undue wear on'the shoe or plate 9, the same is located upon the under side of the axle 6, although this disposition is not necessary. To prevent lateral motion of the coiled spring 10, the pinor' stud 11 is provided, the same extending inward from the shoe or segmental plate 9 and being encircledby the spring for the purpose indicated. To motion of the spring 1 O, the reduced end thereof. is fitted within a depression (see Figs. 2 and 3) formed in the inner surface of the segmentalplate or shoe 9 around the pin 11.

I have represented one-endof. a conductor, as 12, which may be of wire, oined with the inner side of the shoe or plate 9, the opposite end of said wire being connected with the screw 13, passing through a perforation'in the axle 6 and tapped into the harp 7. The screw 13v serves severalfunctions. It prevents the axle turning in the harp, provides an adjustable connection between the conductingwire and the. axle, and also serves as a good conductor between the wire and harp.

washers between the opposite ends of the wheel-hub and the sections of the harp..

The conductor 12 provides for the passage of the electric current from the shoe 9 to the harp 7, in connection, of course, with the screw 13 or equivalent means.

It is understood, of course, that the-opposite open ends of the tubes 8 do not project beyond the periphery of the axle 6, as in case they did they would interfere with the proper rotation of the wheel5.

By the construction hereinbefore described I provide a trolley the working parts of which can be thoroughly, evenly, and uniformly lubricated and a'hollow axle so related with the supporting frame or harp as to assure the passage therethrough of atmospheric air in order to cool the axle. I also prevent arcing between the axle and the wheeland the same between the ends of the lubricant and the wheel. I also apply a lubricant to a large number of points within the wheel. I also provide for the thorou h-lubricationof. the contact-shoe or equiva ent member hereinbefore described. In practice no current passes through the coiled spring 10.

Having thus described the invention,what

I claim is 1. In a trolley, the combination of an axle havmg a slot, a segmental plate constituting a contactshoe, in said slot, and a wheel rotative on the axle and surrounding said also aid in limiting lateral plate, a coiled spring in the axle, bearing at its outer end against said plate, and a fixed bearing in. the axle for the inner endiof said spring.

2. In a trolley, the combination of a hollow axle having a peripheral slot, a segmental plate in the slot,.a wheel rotative on the axle and surrounding the plate, a pair of lubricant-containing tubes extending trans- ;versely through the axle, and a coiled spring in the axle, bearing at its outer end against said plate and at its inner end against said tubes.

3.. In a trolley, the combination of a hollow axle having a peripheral slot, a segmental plate in saidslot, constituting acontactshoe and provided withan inwardly-extendingpin, a'wheel-rotative around the axle and: surrounding said plate, a coiled springiin the axle, encircling said pin, its outerendbearmg agamst said plate'topress the same-outward, and a fixed bearingin the-wheel for theinner end of the spring.

4:. In a trolley, the combination of a=hol ;low axle having a peripheral'slot, asegmen- @tal plate in said slot, a wheel on the axle, ;surrounding the plate, lubricantcontaining- Ttubes extending transversely of the axle, a,

j in on the plate, extending inward there- In practice I provide, of course, suitable ispring encircling. the pin, the inner end ofzthe jspring resting against said tubes. and theouter end bearing against theplate to force thesameoutward and into-contact Withthe om and between said tubes, and: a coiled inner surface of the wheel.

5.. Ina trolley, the branches of which have threaded openings through the same, an. axle, the

tionsof which are fitted? in said threaded openings, said axle having; a peripheral slot,.

a plate constituting a contact-shoe, fitted'in said.- slot, a screwtapped in=thel-plate, asec- 0nd screw tapped through the axle to pre ventturning motion thereof with respect to the harp, an electrical connection between the two screws, a wheel on the axle, surrounding said plate, andmeans in the axle for yieldably pressing. the plate against. the inner surface of the wheel.

6. In a trolley, the combination-ofarharp, the branches of which have threaded open.- ings, a hollowaxle, theend portionsof which are threadedinto said openings, saidaxlebeing open fromend to end, lubricant-containing tubes carried by the axle transversely thereof, a contact-plate, the axle being peripherally slotted to receive said plate, a wheel on the axle, surrounding the plate, a

screw tapped into said'plate, a second screw tapped through. the end portionv of the axle with respect to prevent turning of the axle to the harp, an electrical connection be the combination of. aharp,

end por-- ICC tween the screws, a fpin on said plate, extending inward there rom and between said tubes, and a coiled spring surrounding the pin, bearing at its inner end against the tubes and at its outer end against the plate, said spring serving to press the plate yieldably against the inner surface of a wheel.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES M. FEIST. Witnesses C. W. TAYLOR, R. H. BURTONSMITH. 

